The units recorded around 1.2 billion francs in 2012 sales, or roughly 15 percent of the Basel-based chemical firm’s total revenue. The businesses had been on the block since early this year.

“For Clariant the transaction marks a significant milestone in the execution of its profitable growth strategy, after the acquisition of Sued-Chemie in 2011,” Chief Executive Hariolf Kottmann said in a statement on Thursday.